Hello,I have a sky2 network card in my intel mac mini. It stops working when Ido havy network load like watching a divx over http/sshfs. However if Iremove the driver module and load it again it works and even the tcpconnection doesn't get shutdown. I automated the above procedure usinga userland watchdog which basically does the same thing and is writtenentirely by me, because the traditional watchdog wasn't that reliableand did a lot of false positives:

* Look every ten seconds if my default router is pingable (3 pings, one has to get back). If it isn't the case I call network_fix script (it calls the script only once after a ping gets lost. To run the script again at least one ping has to arrive again)

(mini) [~] cat /usr/local/sbin/fix_network #!/bin/bash

export PATH=/bin:/usr/bin:/usr/sbin:/sbin

rmmod sky2 modprobe sky2 ifdown eth0 ifup eth0

If after that no ping is received from the default router for another 90 seconds I tell init to reboot and stop feeding the kernel software watchdog.

* My watchdog also checks if sshd process is running. If it is down for more than 100 seconds it reboots the machine, too.

I have a question to this: I wonder why the Linux Kernel (no longer?)increments the use counter of an ethernet driver (I saw it on sky2 ande1000) when the interface is up, running and configured? I can unloadthe sky2 driver without doing a 'ifconfig eth0 down' beforehand. Couldsomone provide me with background on this fact?

With that everything works. If somone is interested in my userlandwatchdog, just send me an E-Mail.

@Sam: I can provide you access to my hardware including root access viathe wifi driver so that you can debug this network driver lockup, if youwant to.